java.util.UnknownFormatConversionException: Conversion = '''
        at java.util.Formatter.checkText(Formatter.java:2579) ~[?:1.8.0_74]
        at java.util.Formatter.parse(Formatter.java:2565) ~[?:1.8.0_74]
        at java.util.Formatter.format(Formatter.java:2501) ~[?:1.8.0_74]
        at java.util.Formatter.format(Formatter.java:2455) ~[?:1.8.0_74]
        at java.lang.String.format(String.java:2940) ~[?:1.8.0_74]
        at at.pcgamingfreaks.MinePacks.Backpack.<init>(Backpack.java:54) ~[?:?]
        at at.pcgamingfreaks.MinePacks.Backpack.<init>(Backpack.java:48) ~[?:?]
        at at.pcgamingfreaks.MinePacks.Backpack.<init>(Backpack.java:43) ~[?:?]
        at at.pcgamingfreaks.MinePacks.Database.Database$2.onFail(Database.java:161) ~[?:?]
        at at.pcgamingfreaks.MinePacks.Database.SQL$3$1.run(SQL.java:359) ~[?:?]
        at org.bukkit.craftbukkit.v1_9_R1.scheduler.CraftTask.run(CraftTask.java:53) ~[craftbukkit.jar:git-Bukkit-52c7fc0]
        at org.bukkit.craftbukkit.v1_9_R1.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:349) [craftbukkit.jar:git-Bukkit-52c7fc0]
        at net.minecraft.server.v1_9_R1.MinecraftServer.D(MinecraftServer.java:686) [craftbukkit.jar:git-Bukkit-52c7fc0]
        at net.minecraft.server.v1_9_R1.DedicatedServer.D(DedicatedServer.java:361) [craftbukkit.jar:git-Bukkit-52c7fc0]
        at net.minecraft.server.v1_9_R1.MinecraftServer.C(MinecraftServer.java:635) [craftbukkit.jar:git-Bukkit-52c7fc0]
        at net.minecraft.server.v1_9_R1.MinecraftServer.run(MinecraftServer.java:539) [craftbukkit.jar:git-Bukkit-52c7fc0]
        at java.lang.Thread.run(Thread.java:745) [?:1.8.0_74]